Foldable chair with strap

Abstract

A portable foldable chair includes a frame, a fabric attached to the frame, and a strap. The frame includes supporting rods including two front and two back-rest rods, bases provided at bottoms of the front and back-rest rods, pivoting seats provided on the front and back-rest rods, and pairs of crossing rods disposed between two adjacent supporting rods. A pair of crossing rods includes two crossing rods pivotally coupled to each other. Each crossing rod in one pair has a lower end pivoted to the base provided at the bottom of one supporting rod, and an upper end pivoted to the pivoting seat provided on the adjacent supporting rod. The strap has one end fixedly attached to the base of one back-rest rod and the other end fixedly attached to the chair fabric in proximity to a top of the other back-rest rod.

What is claimed is: 
     
         1 . A portable foldable chair, comprising:
 a chair frame comprising:
 a plurality of supporting rods including two front rods and two back-rest rods; 
 a plurality of bases provided at bottoms of the two front rods and the two back-rest rods; 
 a plurality of pivoting seats provided on the two front rods and the two back-rest rods; and 
 a plurality of pairs of crossing rods disposed between two adjacent supporting rods, wherein
 a pair of crossing rods include two crossing rods pivotally coupled to each other, and 
 each crossing rod in the pair of crossing rods has a lower end pivoted to the base provided at the bottom of one supporting rod, and an upper end pivoted to the pivoting seat provided on the adjacent supporting rod; 
 
   a chair fabric attached to the chair frame; and   a strap having one end fixedly attached to the base of one back-rest rod and the other end fixedly attached to the chair fabric in proximity to a top of the other back-rest rod.   
     
     
         2 . The portable foldable chair according to  claim 1 , wherein the strap includes two separable portions detachably connected to each other by a release buckle. 
     
     
         3 . The portable foldable chair according to  claim 1 , further comprising:
 two tightening belts, each with one end fixedly attached to the chair fabric in proximity to the top of one of the two back-rest rods respectively, and   a connecting component provided on the two tightening belts to connect the two tightening belts.   
     
     
         4 . The portable foldable chair according to  claim 3 , wherein the connecting component is a release buckle or a velcro®. 
     
     
         5 . The portable foldable chair according to  claim 3 , wherein the connecting component comprises a button formed on one tightening belt and a hole, matching with the button, formed on the other tightening belt. 
     
     
         6 . The portable foldable chair according to  claim 2 , further comprising:
 two tightening belts each with one end fixedly attached to the chair fabric in proximity to the top of the two back-rest rods respectively, and   a connecting component provided on the two tightening belts to connect the two tightening belts.   
     
     
         7 . The portable foldable chair according to  claim 6 , wherein the connecting component is a release buckle or a velcro®. 
     
     
         8 . The portable foldable chair according to  claim 6 , wherein the connecting component comprises a button formed on one tightening belt and a hole, matching with the button, formed on the other tightening belt.